Feed-regulating device



Feb. 19, 1929.

F. L. FURBUSH FEED REGULATING DEVICE Filed Jan. 1l, 1926 Patented Feb. 19, 1929.

UNITED STATES igozasz PArisNr orf-FICE.,

FRANK L. FURB'USH, OF WESTFORD, MASSACHUSETTS, ASSIGNOR TO C. G. SARGNTS SONS CORPORATION, 0F GRANITEVILLE, MASSAOHUSETTS, .A CORPORATIONA 0]' MASSACHUSETTS.

FEED-REGITLATIIIG DEVICE.

.Application `ined k.nmuaryA i1, i926. serial no. 80,481.

upon it. Material of this kind usually is.

held in a hopper'in which the upwardly inclined elevating apron is located so that the conveying strand of that apron practically constitutes one side of the hopper. Means is provided in the hopper at the bottom for constantly or intermittently advancing the n* kmaterial from the bottom ofthe hopper against this elevating apron. These feeding devices were perhaps originally designed for comparatively light material but now they are in use for heavier material which is piled up in the hopper toy a considerable height above the bottom of the elevating apron. Consequently the weight of this material is exerted against the face of the apron at points remote from the points of support ofthe apron. It not only creates a very material strain upon theapronbut diverts it out of its course and also strains the bea-rings of the rollers at the top and bottom of the apron or even sometimes bends the rollers or their shafts. This invention is designed to avoid these difficulties.

CJI

Further objects and advantagesof the invention will appear hereinafter.

drawings, in which Fig. 1 is aside view with the front wallA removed of an ordinary type of hopper feeding device with a preferred embodiment of this invention applied thereto; and

Fig. 2 is a side view of another form of these feeders and showing the application of this invention thereto.

As` stated, the invention is shown as ap` Reference is to be had to the accompanying inFig. 1 there is a feed roll 15 `at thebottom close to the lower edge ofthe upwardly slanting` inner strand of the elevating apron 11.

This is provided with angle bars 16 extending thev length of it and is shown here` as asoperated by an eccentric pin 17 on the shaft lof the bottomfapron guide roller 12 which,

through links,y operates intermittently a ratchet'pawl 18 engaged with a ratchet wheel 19 `on the shaft of the feed roll `15. This feedsr the material .toward the bottom of the apron 11 from a more remote position at the bottom lof the hopper. AnV inclined shelf 19a ordinarily is used tovinsure` that the material. will come into engagement with the feed roll. y l

I use all the above described features of the ordinary machines for fcedingthis class of material, but to avoid the pressure of the material' against the inner and active strand of the elevating apron 11 I vprovide a plate 20 located in t-he hopper to protect this strand of the apron. It is pivoted on a rod 21 near the top of the hopper so that the material will not be fed over it to any great extent and is inclined downwardly along the apron to a point closely adjacent to the feed roll 15. At

having a hand wheel 24 at the rear of the n machine. By turning these the angle of the plate or partition 2O in the hopper ischanged in accordance with the amount of feed desired and the character of the material which is being acted upon. This constitutes an efvfective means with comparatively little vei:-

pense for avoiding this unnecessary strain vthat is usually put on the elevating apron.

, In the .form shown in Fig. 2 the conditions are just the same and the same reference charn a'cters are employed to designate` the same parts. The only difference is that in this case it is applied to another type of feed hopper in which. instead of the feed'roll 15, a feed apronl 25 is employed. It works inthe same way and no further description of details is necessary.

It willbe seen therefore that this principle can be applied to different types of feeders and that it will have the same function and effect irrespective of the way in which the material is fed to the inclined feeding apron.

Although I have illustrated and described lll only two forms of thek invention, I am aware of the fact that modifications can be made therein without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited to the details herein disclosed, but what I do claim 1s l. In a feeding device for material in small pieces, the combination with a hopper in which the material is located, an elevating apron within the hopper having its feeding strand inclined near one wall of the hopper for feeding the material upwardly therefrom, an inclined shelf at the top of the apron for receiving the material therefrom and means in the bottom of the hopper for feeding the material at the bottom into contact with this apron,v of a partition extending across the hopper from a point adjacent to the last named feeding means to a point near the top of the hopper and near the active strand of the elevating apron.

2. In a feeding device for` material in small pieces, the combination with a V-shaped hopper in which the material is located, an elevating apron within the hopper having its feeding strand inclined along one inclined wall of the hopper for feeding the material upwardly therealong, and a roller in the bottom of the hopper for feeding the material at the bottom into Contact with this apron, of a partition extending across the hopper from a point adjacent to the roller to a point near the top of the hopper and near the active strand of the elevating apron, means for pivoting said partition at its upper end so that its lower end can swing toward and from the elevating apron, and screws at the sides of the hopper for adjusting the angle of said partition.

3. In a feeding device for material in small pieces, the combination with a V-shaped hopper in which the material is located7V an elevating apron within the hopper having its feeding strand inclined along one'inclined wall of the hopper for feeding the material upwardly therealong, and meansin the bottom of the hopper for feeding the material at the bottom into contact with this apron, of a partition extending across the hopper to a point near the top of the hopper and near the active strand yof the elevating apron, and, means for pivoting said partition at its upper end so that its lower end can swing toward and from the elevating apron.

In testimony whereof I have hereunto afiXed my signature.

FRANK L. FURBUSH. 

